Like any other cookie dough the peanut butter blossom cookie dough can also be frozen. I would suggest that you scoop out the dough, roll it into balls, place it on a baking sheet lined with parchment paper, cover it with plastic wrap and freeze it. Once it hardens for a while, maybe after 30 minutes or so, remove it, store it in a freezer bag and put it in the freezer for future use. Thaw it for a while if you want to roll it in the sugar before baking. If you do not prefer to roll it in the sugar then flatten the cookies even before freezing, so that you can directly bake it without thawing. Just add additional 2-3 minutes baking time.